Procedure for det erm ining t he num ber and ident it y of kuchi com m unit ies t o be
sam pled w it hin t he dist rict
1. Num ber t he Kuchi Com m unit ies in t he list w it h ser ial num ber s fr om 1 t o N.
2. I f N is less or equal 15, select a r andom int eger bet w een 1 and N. I f N is bigger t han 15, select a r andom int eger bet ween 1 and 15. Call R t he r andom int eger so select ed.
3. Select Kuchi Com m unit y Num ber R.
4. I f R+ 15 is less or equal N, select a 2nd
Kuchi Com m unit y Num ber R+ 15.
5. I f R+ 30 is less or equal N, Select a 3r d
at Kuchi Com m unit y Num ber R+ 30, and so for t h.
( The ex pect at ion is t hat t his select ion pr ocedur e should give a sam ple size of 35 com m unit ies in each half sum m er sam pling rounds i.e. lat e sum m er 2007 and ear ly sum m er 2008.)
Se le ct ion of t e nt s w it hin a k u ch i com m u nit y
Fieldwork er s w ill dr aw t he list of all t ent s in t he select ed com m unit ies using For m KUCHI - 2. I t is ex pect ed t hat t his list can be dr aw n in consult at ion w it h k now ledgeable per sons in t he com m unit y . I t does not r equire t r av eling to all t ent s in t he com m unit y .
Fieldwork er s w ill t hen select the eight t ent s t o be int er v iewed as follow s:
1. Num ber t he t ent s in t he list wit h ser ial num ber s fr om 1 to N.
2. Div ide N by 8, and keep one decim al. Call t he r esult “ t he sam pling st ep” ( S) .
3. Select a r andom int eger bet ween 1 and S. Call t his num ber “ t he r andom st ar t ” ( R) .
4. Com put e num ber s R, R+ S, R+ 2S, …, R+ 7S, keeping one decim al.
5. The num ber s of t he select ed tent s ar e t he int eger of t he abov e num ber s.
Ex a m ple
1. Ther e ar e 90 t ent s in t he com m unit y , N= 90
2. S = N/ 8 = 90/ 8 = 11.25 = 11.3 t o 1 decim al place
3. Radom int eger num ber bet w een 1 and 11.3 ( R) = r andom star t = 3
4. R, R+ S, R+ 2S, …, R+ 7S
= 3, 14.3, 25.6, 36.9, 48.2, 59.5, 70.8, 82.1.
5.
Select tents 3, 14, 25, 36, 48, 59, 70, 82
Sampling issues to accommodate Ramadan in the kuchi sample
bias by not including any k uchi enum er at ion in t he Ram adan m ont hs. Kuchi sam pled in w int er and sum m er locat ions because t he av ailable infor m at ion on t he num ber s of k uchi com m unit ies in t he locat ion is only av ailable for w int er and sum m er per iods. The spr ing and aut um n per iods at t im es of m igr at ion, and t hese are per iods w her e we do not hav e good predict iv e infor m at ion of w here k uchi com m unit ies ar e likely t o be encount er ed. Hence t hey ar e not sur vey ed dur ing t he spr ing and aut um n per iods of t he NRVA sur v ey .
To ov er com e t he pot ent ial bias of not hav ing any k uchi PSUs enum er at ed dur ing t he Ram adan m ont hs, 1/ 12t h
of all of t he k uchi PSUs ar e to be sam pled dur ing Ram adan 2008 ( Sept em ber ) . Ther e w as no k uchi enum er at ion dur ing Ram adan 2007, because it t ook place aft er t he sum m er k uchi enum er at ion per iod. While Sept em ber is lat e in t he sum m er k uchi enum er at ion per iod, it is st ill a t im e w hen it m ay be possible t o find k uchi com m unit ies in t heir pr edict ed sum m er dist r icts befor e t hey st ar t t he m igr at ion t o t he w int er locat ion. This procedure w ill ensur e t hat equal w eight ing can be m aint ained for Ram adan and non-Ram adan k uchi PSUs.
A t ot al of 140 PSUs ar e t o be enum er at ed for k uchi dur ing the NRVA 2007/ 08 surv ey : 35 dur ing sum m er 2007, 70 dur ing w int er 2007/ 08 and anot her 35 dur ing sum m er 2008. Ther efor e 1/ 12t h
of 140 k uchi PSUs = 11 2
/3 r ounded up t o t he near est int eger = 12 PSUs t o be enum er at ed in Ram adan 2008.
Select ion of PSUs t o be enum erat ed during Ram adan 2008
Because w e do not k now ex - ant i t he num ber of k uchi com m unit ies t hat w ill be encount er ed in each of t he 28 dist r ict s select ed for sum m er k uchi enum er at ion, r andom sam pling w ill t her efor e be at t he lev el of dist r ict r at her t han t he lev el of PSU. These follow ing st eps ar e for sam pling 12 Ram adan m ont hs PSUs:
1. From t he 28 k uchi dist r ict s t o be sam pled dur ing sum m er 2008, r andom ly select 12 dist r ict s for enum er at ion dur ing t he Ram adan per iod.
2. I f in any of t he 12 distr ict select ed for Ram adan enum er at ion, t her e ar e sufficient k uchi com m unit ies t hat t he sam pling m et hodology r equir es m or e t han one k uchi PSU t o be
